Cable Matters 10 Pack Multimode Duplex Fiber LC Coupler & Adapter with Flange for OM1 and OM2 MULTIMODE DUPLEX FIBER COUPLER provides a mating alignment sleeve to connect duplex or simplex multimode fiber cables with small form factor LC connectors MULTI-FUNCTION ADAPTER can be mounted in a patch panel or work area outlet or used to mate duplex LC patch cords or LC whips; An integrated stainless steel clip on the coupler provides for snap-in panel connections; Mounting screws are included for mounting with the integrated flange CONVENIENT 10 PACK provides spares to keep in your toolkit or at a work bench for last minute installations or testing SUPERIOR CONSTRUCTION combines one-piece polycarbonate construction with durable phosphor bronze ferrules and protective dust caps to maintain a contamination free connection STANDARDS COMPLIANCE includes a safty rating that meets UL 94 V-0 regulations